God prescribes strict guidelines for correct worship in the Old Testament, and He provides severe consequences for the failure to uphold those ideals. For example, Nadab and Abihu, sons of Aaron, the High Priest, discovered the severity of God's punishment when they tried to worship God in their own way--with no recognition of God's authority and sovereignty and rightful position as "owner of the cosmos". The author of Hebrews provides a glimpse into worship from our side of the cross and Christ's resurrection, and, in so doing, this author seemingly flips the worship of God upside down. The text tells us that we can boldly approach the throne of grace. In this sermon, Pastor Arnold deals with the apparent paradox of the Old Testament picture of specific rules for worship and the bold confidence "prescribed" in the New Testament.